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CJ Karrer
Writer · Reviewed by Richard ChanUpdated Jun 12, 2026
1 min read
Failing to check if your preferred doctors and hospitals are in a Medicare Advantage plan's network can result in significantly higher out-of-pocket costs.
Beneficiaries often overlook the plan's drug formulary, meaning they might enroll in a Medicare Advantage plan that does not adequately cover their specific prescription medications.
Assuming a plan with a $0 monthly premium means $0 in medical costs is a mistake, as beneficiaries are still responsible for copayments, deductibles, and the standard Part B premium.
Whether you’re considering switching your coverage or are gearing up to enroll in a Medicare Advantage plan for the very first time, the stakes are undeniably high. A hasty decision could leave you stuck with restrictive doctor networks or surprising out-of-pocket costs. Before you sign on the dotted line, you owe it to yourself—and your savings—to understand and avoid these all-too-common enrollment traps.